PROJAHN Drill Bit HSS-G Type SN 4.2 mm | 125042

The PROJAHN HSS-G Type SN 4.2 mm drill bit is a modern tool engineered for efficient and precise drilling. Designed to reduce friction and heating, this drill bit features a special two-step web taper, eliminating the need for a center punch. Its optimized chamfer width minimizes the required feed force and torque, ensuring quick and straightforward drilling into solid materials. Suitable for a range of applications, including drilling into steel, cast steel, thermosets, thermoplastics, and non-ferrous metals like aluminum and brass. The high-speed steel (HSS-G) construction ensures durability and consistent performance in various building materials.

Specifications & Features:

• Material: HSS-G
• Standards: DIN 338
• Side Chip Angle: 35 – 40
• Point Grinding: Tapered finish
• Point Angle: 130
• Tolerance: h8
• Core Increase: Strong (2-stage amplified)
• Core Thickness: Thicker than regular
• Diameter: 4.2 mm
• Length: 75 mm
• Use For: Steel up to 1000 N/mm, aluminum, copper, brass, thermoplastics, and thermosets

Metal Drill Bits